Mongkol was fantastic and his place was perfect. It is just a couple blocks from the Grand Palace and Wat area, and walking distance from Khao San road/market, flower market and other local spots. The room is very clean, private-feeling, and comfortable.
Mongkol helped arrange transport for us, provided a beautiful breakfast and even washed our clothes at next to nothing. He was always available and a great help with navigating the city.
If we are ever back in Thailand, we will stay here again.